US4751897A - Heating bodies for gas water heaters - Google Patents

Heating bodies for gas water heaters Download PDF

Info

Publication number
US4751897A
US4751897A US07/024,633 US2463387A US4751897A US 4751897 A US4751897 A US 4751897A US 2463387 A US2463387 A US 2463387A US 4751897 A US4751897 A US 4751897A
Authority
US
United States
Prior art keywords
heating body
water
chamber
body according
exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/024,633
Other languages
English (en)
Inventor
Claude Malhere
Jean-Michel Porcher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAURY CHAFFOTEAUX
Chaffoteaux et Maury SAS
Original Assignee
Chaffoteaux et Maury SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chaffoteaux et Maury SAS filed Critical Chaffoteaux et Maury SAS
Assigned to MAURY, CHAFFOTEAUX, reassignment MAURY, CHAFFOTEAUX, ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MALHERE, CLAUDE, PORCHER, JEAN-MICHEL
Application granted granted Critical
Publication of US4751897A publication Critical patent/US4751897A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel

Definitions

  • the invention relates to heating bodies forming apparatus intended for heating water by combustion of a gas, which bodies are in the form of a vertical tubular chamber through which flames and burnt gases travel from bottom to top and which is obstructed at its upper end by a heat exchanger itself including a pipe section through which the water to be heated flows.
  • these heating bodies are divided into two categories, namely wet chambers and dry chambers.
  • Wet chambers are formed by a metal sheet chimney about which is coiled a tube intimately associated therewith by brazing, said tube being intended to have flowing therethrough the water to be heated before admission thereof into the exchanger.
  • sleeves made from a refractory material, such as a silica-alumina mixture, coated outwardly with a metal protective wall, said sleeve having the exchanger disposed thereover.
  • This construction lends itself readily to automated manufacture and to removal of the whole of the piping intended to have the water to be heated flowing therethrough.
  • the refractory body forming the internal face of the dry chamber is very little cooled between successive drawing off operations and the amount of heat accumulated in this body during each operation of the apparatus--and even between successive operations, because the pilot light is permanently lit--is relatively high to the extent that this body is often red hot.
  • such apparatus should raise the temperature of the cold water admitted by about 50° for prolonged drawing off conditions and, at the beginning of each drawing off operation, this temperature rise should not exceed this operating value by more than 20° C.
  • the hot water drawn off should be brought to a temperature of the order of 70° C. and this temperature should remain less than 90° at the beginning of each drawing operation.
  • the aim of the invention is especially to overcome these drawbacks by limiting to about 15° C. the initial maximum overheating likely to be observed at the beginning of repeated drawing off operations.
  • the heating bodies of the invention again have, like the dry chambers, a wall portion made from a refractory material lined outwardly by a simple protective metal sheet, that is to say without any water duct, and they are essentially characterized in that the front portion of their wall is a heat conducting metal panel adapted so as to form a capacity or chamber through which the water to be heated passes just upstream of the exchanger.
  • the front panel is mounted on the rest of the heating body so as to be readily removable, particularly by screwing,
  • the water chamber formed by the front panel has an end piece oriented vertically upwardly and adapted to be readily connected to a vertically downwardly oriented end piece provided at the end of the pipe section of the exchanger,
  • the front panel is formed by a metal sheet on which a pipe section forming the water chamber is intimately brazed
  • the section mentioned in the preceding paragraph includes a zig zag shaped tube
  • the front panel is formed by two parallel dividing walls slightly spaced apart from each other whose edges are brought sealingly together so as to form the water chamber,
  • one at least of the two dividing walls mentioned in the preceding paragraph has hollow impressions whose bottoms are welded against the other dividing wall
  • the exchanger is in the form of a drawer horizontally movable above the front panel and adapted to be removably housed inside the U formed by the three other panels defining the heating body.
  • the invention includes, apart from these main arrangements, certain other arrangements which are used preferably at the same time and which will be more explicitly discussed hereafter.
  • FIG. 1 of these drawings shows a perspective view of a water heater heating body constructed in accordance with the invention.
  • FIG. 2 shows similarly the same heating body with its exchanger and its front panel removed.
  • the heating body here considered includes:
  • a vertically oriented tubular chamber 1 having a horizontal rectangular or square section
  • Chamber 1 is equipped at its base with ramps of burners (not shown) fed with fuel gas and its role is to guide the flames from these ramps and the corresponding hot gases towards the exchanger.
  • Exchanger 2 is formed, in a way known per se, by a succession of vertical and parallel fins 3 spaced apart by the parallel rectilinear sections 4 1 of a pipe section 4 through which the water to be heated flows, said sections forming zig zags with semicircular connections 4 2 which connect their ends together in twos.
  • the zig zag portion of section 4 is itself extended outwardly of the exchanger by two downwardly turned bends 4 3 , 4 4 , one of which is itself extended by a vertical section 4 5 whereas the other bend ends in an piece 5 threaded for connection purposes.
  • Chamber 1 includes four flat panels, namely a rear panel 6, two side panels 7 and 8 and a front panel 9, the front of the chamber being the zone where the user stands who controls the water heater when the rear corresponds to a support wall in the most general case where it is a question of a wall mounted apparatus.
  • Each of the three rear 6 and side 7 and 8 panels is formed, as for known dry chambers, by a plate 10 made from a refractory material, particularly from silica-alumina, lined outwardly with a metal plate 11.
  • the three plates 11 are formed preferably by bending the same galvanized metal sheet in a right angled U.
  • edges of the three metal walls 11 are themselves bent back at right angles so as to form stiffening flanges for the partial box formed, the horizontal flanges 12 further serving as guide and/or closure flanges whereas the vertical edges 13, perforated at 14, serve as support surface.
  • the front panel 9 is formed by a rectangular or square metal sheet 15 made from a heat conducting metal such as copper, on the outer face of which is brazed a pipe section 16 also formed from a heat conducting metal such as copper.
  • This metal sheet 15 is pierced close to its vertical edges with apertures 17 and it is fixed by screwing to the above vertical flanges 13 by means of screws 18 engaging with the holes 14.
  • the pipe section 16 is a zig zag coil having vertical rectilinear sections and ending at the top in a widened end piece 19 (FIG. 2) disposed in a position such that it may be readily and sealingly connected to the above end piece 5 using any appropriate readily removable connection 20, preferably of a screw type (FIG. 1).
  • the assembly of the exchanger 2 and the pipe sections which extend therefrom form a horizontally movable drawer above the front panel 9 so as to be readily positioned in the upper zone of chamber 1, from the front of the apparatus, and to be withdrawn forwardly from this zone.
  • exchanger 2 and the front panel 9 may be very easily removed from the rest of the heating body, independently of each other, which simplifies repair or cleaning thereof and allows replacement thereof if required.
  • the maximum value of overheating likely to be observed at the beginning of each drawing off operation carried out short after a previous drawing operation may thus be limited to less than 20° C., even 15° C.
  • the front water jacket panel 9 forms between the combustion chamber and the front portion of the covering of the apparatus a heat screen more efficient than a heat accumulating refractory wall, which reduces the temperature of said front portion and consequently reduces both the feeling of burning experienced by users when their hands or faces are in contact with this front portion and overheating of the volume situated in front of the apparatus.
  • the water chamber formed by the front panel is formed otherwise than by a tube extending in zig zags with vertical rectilinear sections brazed to a metal plate, this chamber being formed for example by such a zig zag tube with horizontal rectilinear sections, or else by a double metal dividing wall whose edges are applied sealingly one against the other, one at least of the two dividing walls advantageously having hollow impressions, in particular pin point or linear, whose bottoms are welded to the other dividing wall, which has the double advantage of mechanically reinforcing the construction and of subjecting the flowing water to a turbulence promoting the heat exchange,
  • tubular chamber 1 those in which one or two of the three panels 6, 7, 8 other than the front panel 9 forming the tubular chamber 1 is adapted at least partially like this front panel in the manner of a "wet" wall or water chamber with heat conducting walls, only the remaining panel (or the remaining panels) being then formed in the manner of the above “dry” panels, that is to say having a plate made from a refractory material lined with a simple external metal sheet,
  • the water heater considered is not a water heating apparatus properly speaking intended solely for intermittent drawing off of hot water, but a water heating apparatus of higher heating power, such as a bath heater or a central heating boiler.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Resistance Heating (AREA)
  • Details Of Fluid Heaters (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
US07/024,633 1986-03-14 1987-03-11 Heating bodies for gas water heaters Expired - Fee Related US4751897A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8603689A FR2595796B1 (fr) 1986-03-14 1986-03-14 Perfectionnements aux corps de chauffe pour chauffe-eau a gaz
FR8603689 1986-03-14

Publications (1)

Publication Number Publication Date
US4751897A true US4751897A (en) 1988-06-21

Family

ID=9333144

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/024,633 Expired - Fee Related US4751897A (en) 1986-03-14 1987-03-11 Heating bodies for gas water heaters

Country Status (9)

Country Link
US (1) US4751897A (fr)
EP (1) EP0237443B1 (fr)
JP (1) JPS62272062A (fr)
AT (1) ATE48309T1 (fr)
AU (1) AU599360B2 (fr)
CA (1) CA1283008C (fr)
DE (1) DE3761060D1 (fr)
DK (1) DK164243C (fr)
FR (1) FR2595796B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158069A (en) * 1991-12-16 1992-10-27 Teledyne Industries, Inc. Wind-resistant heating appliance
US5201807A (en) * 1992-02-26 1993-04-13 Gas Research Institute Gas-fired water heater
US5937768A (en) * 1996-01-04 1999-08-17 Atwood; Alvin Dale Portable multi-purpose outdoor fire container and hot water storage system
US6951191B1 (en) * 2004-01-09 2005-10-04 Guan-Chou Lin Water heater provided with compact design and hot water temperature for human body
US20090120423A1 (en) * 2006-07-17 2009-05-14 Ungaro Srl Double fuel burning stove

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0816776B1 (fr) * 1996-07-01 2002-10-09 Robert Bosch Gmbh Chauffe-eau à gaz et chambre de combustion refroidie par eau
DE19626321A1 (de) * 1996-07-01 1998-01-08 Bosch Gmbh Robert Gasbeheizter Umlauf-Wasserheizer
AT404755B (de) * 1997-03-17 1999-02-25 Vaillant Gmbh Wärmetauscher
AT406085B (de) * 1998-04-06 2000-02-25 Vaillant Gmbh Heizschacht
CN107504687B (zh) * 2017-06-14 2020-12-22 汤海明 一种多路并联扰流管式换热装置
CN107461931B (zh) * 2017-06-14 2021-02-05 汤海明 一种用于家用燃气热水器的换热装置
JP7035477B2 (ja) * 2017-11-21 2022-03-15 株式会社ノーリツ 熱交換器および温水装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2178561A5 (fr) * 1972-03-04 1973-11-09 Junkers & Co
US4361276A (en) * 1981-05-14 1982-11-30 Edward Paige Heating system having supplemental coil arrangement
US4403573A (en) * 1982-03-29 1983-09-13 Cauchy Charles J Water heating apparatus for solid fuel firebox
US4413590A (en) * 1979-11-23 1983-11-08 Jean Mingret Boiler for a heating system
US4421066A (en) * 1982-02-16 1983-12-20 Teledyne Industries, Inc. High efficiency boiler

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE882296C (de) * 1943-08-05 1953-07-06 Vaillant Joh Kg Heizkoerper fuer gasbeheizte Durchlauferhitzer und Verfahren zu seiner Herstellung
DE2505765A1 (de) * 1975-02-12 1976-08-19 Bosch Gmbh Robert Wassererhitzer mit einem gas- oder oelbrenner
US4421060A (en) * 1981-09-23 1983-12-20 Chore-Time Equipment, Inc. Nipple waterer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2178561A5 (fr) * 1972-03-04 1973-11-09 Junkers & Co
US4413590A (en) * 1979-11-23 1983-11-08 Jean Mingret Boiler for a heating system
US4361276A (en) * 1981-05-14 1982-11-30 Edward Paige Heating system having supplemental coil arrangement
US4421066A (en) * 1982-02-16 1983-12-20 Teledyne Industries, Inc. High efficiency boiler
US4403573A (en) * 1982-03-29 1983-09-13 Cauchy Charles J Water heating apparatus for solid fuel firebox

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158069A (en) * 1991-12-16 1992-10-27 Teledyne Industries, Inc. Wind-resistant heating appliance
US5201807A (en) * 1992-02-26 1993-04-13 Gas Research Institute Gas-fired water heater
US5937768A (en) * 1996-01-04 1999-08-17 Atwood; Alvin Dale Portable multi-purpose outdoor fire container and hot water storage system
US6951191B1 (en) * 2004-01-09 2005-10-04 Guan-Chou Lin Water heater provided with compact design and hot water temperature for human body
US20090120423A1 (en) * 2006-07-17 2009-05-14 Ungaro Srl Double fuel burning stove

Also Published As

Publication number Publication date
AU6998687A (en) 1987-09-17
ATE48309T1 (de) 1989-12-15
DK164243C (da) 1992-11-02
FR2595796A1 (fr) 1987-09-18
DE3761060D1 (de) 1990-01-04
AU599360B2 (en) 1990-07-19
FR2595796B1 (fr) 1988-06-17
EP0237443B1 (fr) 1989-11-29
JPS62272062A (ja) 1987-11-26
DK126087A (da) 1987-09-15
EP0237443A1 (fr) 1987-09-16
CA1283008C (fr) 1991-04-16
DK126087D0 (da) 1987-03-11
DK164243B (da) 1992-05-25

Similar Documents

Publication Publication Date Title
US4751897A (en) Heating bodies for gas water heaters
EP0239189B1 (fr) Chauffe-eau/chaudière au gaz et leur brûleur
JPH04506560A (ja) 熱水加熱器
US4413590A (en) Boiler for a heating system
US2247849A (en) Heater
US4344411A (en) Heat exchanger for space heaters
US4353350A (en) Fireplace heat exchanger
US2376140A (en) Direct-fired unit heater
GB2058339A (en) Combustion chamber for a gas appliance
GB1583297A (en) Gas burning appliances
JP4205924B2 (ja) 給湯器用装置
US2257721A (en) Gas water heater
US2771132A (en) Radiant gas burner apparatus
US2526464A (en) Hot-air heater and boiler therefor
US1908547A (en) Boiler
US1790777A (en) Absignob to the bttdy fttbnace com
US5109807A (en) High output mini hydronic heater
US643503A (en) Hot-water heater.
EP0230789A2 (fr) Echangeur de chaleur
EP0431446B1 (fr) Unité d'échange de chaleur pour réchauffeur d'air
EP0157994A2 (fr) Echangeur de chaleur pour cheminées dirigeant les flammes en zigzag
CA1279867C (fr) Echangeur thermique multitube pour carneau de foyer
GB2118708A (en) Heat exchanger for a gas fired heater
RU2059167C1 (ru) Электроконвектор
US563976A (en) Water-heater

Legal Events

Date Code Title Description
AS Assignment

Owner name: MAURY, CHAFFOTEAUX, ET, 11 BIS RUE LEROUX 75116 PA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:MALHERE, CLAUDE;PORCHER, JEAN-MICHEL;REEL/FRAME:004839/0749

Effective date: 19870407

Owner name: MAURY, CHAFFOTEAUX,,FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MALHERE, CLAUDE;PORCHER, JEAN-MICHEL;REEL/FRAME:004839/0749

Effective date: 19870407

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19960626

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362